When Rob mentioned last week that woodworkers are often challenged by heating and cooling issues in their shops, he wasn’t kidding! Many of you have written in to share your solutions for creating a more comfortable workspace, in spite of Mother Nature. – Editor
“I have a wood/coal burning stove made with a kit and a 55-gallon barrel. It has an electric heat capture ‘radiator’ mounted in the vent too, that heats. A fan blows through it, adding a lot to its efficiency. If I’m just out doing something quick and in one spot, I use an electric heater. I also have a radiant catalytic heater head (Big Buddy) that mounts on top of a 5-gallon propane tank that works very well if I’m not doing anything easily flammable. Luckily, I live at elevation in Colorado, so a box fan in the summer is normally all I need.” – Rick Corbitt
“I took a gamble and bought a one-ton (12,00 BTU) mini-split system made by a company called Aux who seems to sell a load of systems in Mexico. I installed it myself, which was easy, and a friend who had a vacuum pump and set of gauges finished the install and got it running. The unit cost $500, including the shipping. The experiment worked out well. Last winter it was on all the time, set at 60 degrees, which made the shop (separate building) completely livable. This summer it was on A/C all the time at 80 degrees, which was wonderful. For the minimal cost, it’s the best thing I’ve ever done for myself, and the efficiency is surprising. I have hardly noticed it on the electric bill, and it makes my puttering around the shop more comfortable.” – Paul Clipper
“My suggestion: I burn the wood from my previous ‘loser’ projects. Actually, I bought a radiant heater from Costco that they usually sell this time of year. That way I don’t have to heat the entire garage or outside. It focuses the heat where I need it.” – Bill Cecil
“My shop in located in north Georgia, but it still gets cold. I heat my shop with a woodstove. I can eliminate scraps easily in the winter, turning money spent on the wood into heat rather than just thrown out. Summertime cooling is done by opening the doors, fans and dressing light, because it does get hot.” – Tom Snyder
“I am a part-time hobby woodworker and live up in Maine. We have cold and severe cold to overcome. I have two small woodshops, one 10′ x 16′ I have had for some time and am finishing up a 12′ x 14′ that I will be putting a CNC router in. Both of them are run on generator power for all the tools, and I am heating both with small furnaces I got out of old pop-up campers and run off a large grill LP tank and a 12-volt battery with a trickle charger. If I know what I am working on, I will go out in the morning and start the furnace. Then, after breakfast, it’s all ready to go. I also have one that I made portable in a wood box and can set it up as additional heat. I have a small exhaust pipe port so I can set it inside and exhaust the fumes. I pay for a battery trickle tender and a few tanks of propane a year. Not too bad for what I need. When I fully retire, I may look into something more permanent. For now it works great.” – Jared Young
“I’m 20 miles north of Grand Rapids, Michigan, on the east side of a lake. Yup, cold winter winds pouring out of the west, across a frozen lake, chilling my work space. For years, my 24′ x 30′ garage with a large attic was not heated because it wasn’t insulated. But a year ago, we installed wrap-on and vinyl siding. We wired it up for better lighting and plug-ins, then insulated the ceiling and walls and put up drywall. All the work was done by my son and me. We have natural gas at the house, but it’s 100 ft. away down a hill, and between it and the garage is a septic and drain field. To tap into the main line running from the road would have required putting a separate meter on the garage, and I wasn’t quite ready for that. I had a used propane downflow forced-air wall heater with two 20 lb. and two 30 lb. tanks with an auto switching valve, so I installed it, built a sealed box in the corner of the garage and vented it to the outside for the tanks to fit in. I only keep the garage at about 50 to 55 degrees to keep the chill off when it starts to get cold, and that costs about $100 per month. I find that I work well in that temp, and keeping the concrete floor warm helps a lot. I have thought of going to a more efficient furnace, but where do you stop? Not sure what it would cost to have the local utility company trench in a new line and install a meter for me, and I have not priced a new updated furnace. I know it would reduce my monthly cost, probably even give me an additional 10 degrees for free, as well as pay for itself. But at 72, I just don’t know. I’m not yet a major woodworker, but I did buy a lot of woodworking toys before retiring after 40 years in tool and die. Since updating the garage, I started building sound-proof drum rooms for churches so they can control the loudness of the drums through a sound board to match the other musicians. That way, grandma in the front row isn’t having her ears blown out, should the drummer get excited. I’ve built three so far and I find it challenge and rewarding.” – Mike Dennis
“I used to use a downdraft oil furnace (from a mobile home). It heated very quickly, but getting the oil became a problem. I switched to an overhead electric heater. Takes longer but is a lot easier, especially for a senior.” – Ians
“We live in northwest Wisconsin, and I just built my new shop last year. It is a 9′ x 30′ x40′ room inside a larger pole barn. We had radiant floor heat added in the shop during the concrete pour, which I keep set around 55° to keep the chill off. Because radiant floor heat can take hours to alter the temperature, and that I don’t want to pay for comfortable heat 24/7, I added a mini-split. On cold days when I do want to work in the shop, I just trip the mini-split, and it’s shirtsleeve temps in just a few minutes. On the flip side, the mini-split also provides my summer cooling as well.” – Kim Randall
“I am in southwest Ohio. My shop is 14′ x 28′. When I built it, I insulated the ceiling, walls and floor well. I use one of those heat/AC combo devices that is very similar to those you often find in hotel rooms. If I remember correctly, it is called a C-PAT or C-PAC. I never have to run it on high, and it does a great job of keeping me quite comfortable. I also have a roof exhaust fan to remove the heat from the attic.” – Carl Brown
“I live in Upstate New York where the temps sometimes fall below what is comfortable in the shop. When I used the furnace for heating, the shop stayed warm enough for me to work down there in the wintertime. However, I have been heating the upstairs with a coal stove for the past 12 to 15 years, so I needed to come up with a way to heat the shop. My shop is roughly 26′ x 50′. I thought that installing an electric heater would be the perfect answer. I bought the heater and installed it myself, since home wiring is pretty basic. But I’ve found I cannot afford to run the heater. It does a fine job if I had a small fortune to spend for my shop to be cozy warm. A coal or wood stove would be ideal in the basement, but then again, the cost for pipe and stove, even if I installed it myself, is more than I can afford since I am retired. I bought a small propane space heater that runs tanks you might find on a gas grill. It does a fine job, but the wife complains about the fumes it gives off. If I had gas in the wall, a no-vent gas heater would be ideal, but I do not. The space heater works well for as long as it is running, but then the shop cools down again. I can’t afford to run the monster electric heater that I installed, and you need to run it all the time if you want to work in the shop or do any finishing or gluing. The only way I’m going to have a warm-enough shop to work in is if you start a ‘Go Fund Me’ page to pay for heating my shop. A wood stove is my best hope, but I use a lot of the scraps that would feed the thing. You probably should start that Go Fund Me page right now, because the Farmer’s Almanac is forecasting a severe winter.” – jrouleau
“We live in central Texas, so we have extreme summer heat. Shop cooling was a big problem. Several years ago, we added on a single-bay garage and an attached single-bay carport. You can guess who has the privilege of parking in the garage. This arrangement allowed the original two-bay garage to be fully converted to my shop. The shop is fully insulated and attached to the house. After trying the floor-standing portable air conditioner approach, I decided to go another direction. The downstairs air handler for the heat pump is located in the attic of the shop. After much consideration, I decided to try connecting to the downstairs air handler. Since I did not mind a wider temperature range in the shop than is acceptable in the house, I installed a thermostat in the shop to control only the electric dampers I placed in the supply and return ducts I ran to the shop. So if the downstairs unit is running and the temperature in the shop exceeds the set point, then cool or warm air is supplied to the shop. The system has worked quite well. The steel tools no longer require protection from rust, and I don’t become dehydrated or frost bit. The obvious question is: what about fumes and dust recirculating into the house? To assist in minimizing that problem, I placed a filter on the shop return duct. Some fumes from finishes do enter the house, but that has been acceptable. The cost of the equipment was minimal, especially when compared to the cost of a separate heat pump, and I have a wonderful shop to use to construct all manner of wooden objects.” – Don Francis
“Since I have only a smallish two-car garage shop, I struggle with heat and cold. I have offset the heat problem somewhat by installing a 52″ ceiling fan over my workbench (I know, I know, the dust problem). But I also have a three-speed JET dust filter installed as well as two 20″ box fans that I plan to mount in a rolling tower that I can move to where I’m working. Heat is another problem. I live in a 55+ community with a dastardly HOA, so altering the space is out of the question. If I could, I would install one of those combo heat/air units like those found in many motel rooms. But alas, I cannot. So for now, I will have to deal with the cold as best I can. Fortunately, I live in Tennessee, so it is often a little less unbearable.” -Jerry Price
“Fortunately, my shop here in Upstate New York is in my basement. So is my home furnace, right at the edge of my shop space (which I wish it wasn’t; then I could easily have more shop space). So in the winter I get enough residual heat from the furnace and hot air ductwork to keep the entire basement at 60+ degrees. And in the summer, all the poured concrete walls and floor keep the temperature down in the 60s as well.” – Rick Bird
“For me here in Texas, it’s a compromise between needs and wants. I have a small work area, so there’s less to heat and insulate. I use a small oil space heater near my task center, which gets me by. For large projects I open the door during the warmest part of the day. I use fans in summer, but some days it’s still too hot, so evenings work. I put fans near the door, pulling air in to moderate the temperature. I keep trying to pare down to the tools I like to make even better use of the room. I just don’t need 10 ways to do things anymore.” – Stephen England
“About four years ago, I traded some old PVC pipe for a wood stove with a blower. It works very well. Firewood is not a problem. I always have a tree down somewhere on the place.” – Brad Adams
“It’s been a dilemma here in Montana. I have a wood stove in the shop and it works great, except when the wind howls. Here on the plains of Montana it howls a lot. When it’s very cold, the wood stove takes several hours to make it warm enough to work, and sometimes I only want to work for a few hours. I use a diesel space heater to take the initial chill off, but it’s very noisy and smelly. Several years ago I installed an electric space heater. During a very cold February, I used it only to keep the shop above freezing. My shop’s on a separate meter, and the electric bill for the month was over $300. I just installed an 80,000 BTU natural-gas heater. Like Rob, it will be a constant drain on my pocket book, but I’m sure looking forward to it.” – Randy
“I have a large shop (5,000 sq. ft., 20-ft. ceilings) so it is not economically feasible to heat the shop in winter. Still, I have to keep the shop above freezing as the shop is well plumbed, partly for fire suppression and because there is a lot of lumber around. So in the wintertime I keep the shop in the upper 30’s temperature-wise, using a large overhead gas heater. I have not found this to be a problem as a working environment. Wearing a jacket and doing physical work in the main part of the shop is pretty pleasant, and actually I prefer the winter to the hot summer. For fine work, part of the shop has a separate better-insulated room: 10′ x 20′ with electric heat. The joys of a large shop come with some disadvantages. I have quite a bit of frontage on a city street, with two entrances and a big roll-up door, and the street side regularly gets tagged by graffiti ‘artists’, so there is another $95 a month for a graffiti service, which once a month comes around and repaints. With a shop that size, and two heavy steel lumber racks (each 20′ wide and 12′ tall), I use a fork lift for heavy work. Another factor for large shops is lighting. The only solution is industrial lighting fixtures of the type used in warehouses. I use the old high-intensity kind, but as the bulbs burn out I will be replacing them with the new LED versions. One of the most labor-intensive jobs in setting up the shop was the wiring. With 400-amp, three-phase going everywhere, and separate breakers and switches for every machine, installing the 2″ conduit and the many breaker panels was a long job, though my overhead crane (left over from the previous owners) was a really big help; it’s a two-ton crane covering the entire shop. So much for bragging, but my main point is that cold shops are not that bad, except for fine work. I have worked in Switzerland, where many rural homes have a small shop on the hillside, sans heat.” – Robert Lee
“My 24′ x 32′ wood-framed shop is heated by natural gas. It has a 9′ garage door and a utility door. The building is 2×6 construction, insulated and sheeted with chipboard. Heating it adds about 25 to 30 bucks to the gas bill, but I’m warm.” – Don Borgerding
“I live in the Tampa, Florida, area and I just finished installing a split unit A/C to enable comfortable shop time in the hot and humid weather. As you well know, sweat does not mix well with wood or cast iron. It is wonderful to now be able to work out there regardless of the temperature and humidity outside. I am sure you will appreciate your heater as your temps drop.” – Chris Hathaway
“I looked at several expensive options, then installed a vent free 30,000 BTU natural-gas wall mount heater with thermostat and blower. I installed it on the cheap: $400 total, including regulator and flexible gas line. It worked very well last winter and at close to 100 percent efficiency.” – Ed Rosich
“When we moved here 22 years ago, I was lucky enough to have both an understanding wife and some cash left over from the move, so I got one of the ‘Mennonite’ buildings for a terrific price plus the help of a retired electrician who knew things. Anyway, I bought a through-the-wall heat pump. It works just fine unless it is very cold, at which point I add a small heater. I did all the wiring and insulation myself. I added more R-value in insulation than was code, but all in all I am very happy and have minimal cash outlay!” – Chuck Strauss
“I live in the Dallas-Ft. Worth area, so heating really isn’t my problem. The winters are fairly mild, and when it does get cold, I have a small electric radiant heater I place in my shop. My shop is small, about 400 sq. ft. If I get it to 50 to 55 degrees, I am fine. The problem is the summer; I have a small A/C window unit, but it can’t keep it cool and if I open the doors the mosquitoes try to carry me out. They are awful, so I have had to bathe in DEET to work in the shop. Spring and fall are great if you can win the mosquito plague!” – Mark Mckone
“We live in the Sonora desert of Arizona where temperatures inside the workshop range from 60 degrees in the winter to 100 degrees in the summer. The attic is insulated, I have 1-1/2”-thick foam on the garage door and one and a half walls are common to the living area. The remaining walls are block construction. During the pandemic, I found myself spending more time woodworking, so I had to bite the bullet and buy 14,000 BTU portable A/C unit. The instructions say you cannot run the hot exchange air up through the ceiling, so I built a vent that routes it under the garage door (see above photo). I simply open the garage door slightly, place it under the door, release the opener and ease the door on top of this with some boards blocking the rest of the gap. Then I place swimming pool noodles in the gap across the top of the door. When the outdoor temperatures are around 100, I use this setup and a fan blowing from the house through the walk-in door. When outdoor temperatures get to around 110, as it did often this summer, this only helps until it gets too hot to work. Then I have to quit for the day, usually around noon. Below 100, It is a good setup, keeping the shop at around 80 degrees. One problem is, when I do something that my dust collection system can’t control enough dust, I have to close all doors, turn off the A/C and make the sawdust. Otherwise too much dust gets into the house and into the portable A/C unit coils. Blowing cool air from the house is also out of the question when I use chemicals like oil-based finishes. Having a ductless system installed for the garage was a little out of my price range, so this is the best I can do for now. Heating the garage in the winter is done with a space heater of 700 to 1,500 watts, and that does the job real fine. Any time I have critical wood that can’t be exposed to constant changes in temperature and humility, the wood comes into the house for the night or until I need to work on it. If I had it to do over while I was younger, I may re-think the ductless A/C installation.” – JF Praught
“I built a new workshop/garage three years ago in northern Wisconsin, and I planned ahead by putting radiant tubing in the concrete slab and mounted a 90-percent efficient boiler system with plenty of insulation. No blowers are required, like a hanging unit. It maintains heat amazingly with low propane cost, and I can work in there in moccasins. Everything in the workshop is on wheels, so when the blizzards come, I just push everything to the sides and pull the truck in.” – Scott Boyes
“I’m lucky enough to have built an attached shop (15′ x 32′ limited by setback lines) to the existing house, when we moved to northeast Florida a couple years ago. It is well insulated, and I installed a very efficient Daikin one-ton split HVAC heat pump. Not cheap up front, but it does an excellent job of keeping the shop very cool in summer and warm in winter, and it does it for pennies a day! I am very satisfied.” – Rich Dewey
“I have a 20′ x 24′ shop that, at some time before I came along, was added onto the back of my garage. I insulated the dickens out of the four walls and the ceiling. The floor is concrete. There is one double-hung window (facing south), a double-insulated door with a window in each (facing west) and a non-insulated door into the insulated garage. The heater is a gas wall-mount with built-in fan. It is a 15,000 BTU, direct-vent through the wall to the outside that I obtained from Northern Tool. I keep it set at 55 degrees so as to stay above the normal dewpoint to prevent rust. That is warm enough to do small jobs with just a sweatshirt or light jacket. If I want to stay out there for a while, I set it up to 65 degrees and it doesn’t take very long to come up to temp. One day, just for grins and giggles, I set it up to 75 degrees and it had no problem getting there. But that is too hot for me and probably expensive to run.” – Steve Brigham
“I heat my shop with waste oil. I get it from local garages and heat my 42′ x 105′ shop for about $300 a year.” – Tom Hinaman
“I have a 16′ x 32′ pole building that is insulated, although it could use a lot more. Last January, I installed a “Mr. Cool” DIY mini-split and I have been in shop heaven ever since. It is set to auto, 72 degrees, and when it’s cooler out, the heat comes on. When it’s warmer out, well, you get the picture. We did it ourselves, and we love it.” – David Lomas
“Last year I had a 45,000 BTU natural-gas heater installed with direct venting to the outside. Our car and my workshop share the space in a small two-car sized attached garage. I leave the setting on 50 degrees when not in the shop, and I set it to 65 degrees when I’m working in the shop. I looked at the electric option, but yearly cost for electric would have been at least twice as much as gas. It makes working during an Indiana winter much more pleasant.” – Mike Andrews
“With a small 12′ x 20′ shop, I use a window unit to cool and heat my shop here in southeast Texas. It works great — just enough to cool the shop in our terrific summer heat and with enough heat to take the cold edge off in the winter. – Norm Nichols
“I once had a nice ‘weekend’ farm: 72 acres of gently rolling hilltop pastures. I built a BIG 60′ x 40′ pole barn, and inside it I put up a 20′ x 30′ x 10′ insulated enclosure on an 8″ rebar concrete pad. The interior walls were 4′ x 10′ plywood on 2×6 framing. I ran power to the barn, both 120- and 240-volt. I cut a hole in the exterior metal wall to exactly fit a cheap motel type heater/air conditioning unit. I put it up about four feet above grade on a sturdy 2×4 platform. I also put windows in there — one facing into the barn and looking down the slope at the farmhouse I built, and one looking out over two of the pastures. I made the doors 9′ tall so 4×8 plywood would fit easily. Out in the barn, adjacent to the shop, I installed a big, commercial air compressor and an equally large sawdust vacuum collection system. I ran a compressed-air line to a spring reel on the ceiling of the shop and ran a 6″ vacuum line around two walls at 4′ above grade. I ran two lines of power into the shop at waist height, one in 120-volts and one in 240-volts. All my woodworking tools fit nicely! The air compressor, sawdust vacuum, arc welder, HVAC unit, commercial-grade shaper, lathe, planer and 12″ radial arm saw were on 240 volts; all the rest were on 120 volts. Power switches for each vacuum hookup were adjacent to the electrical power outlets. I’d flip the gate up and the switch on for the vacuum when a tool was being used. You could hear the vacuum out in the barn from inside the shop, but just barely. The electric arc welder was out in the barn near where I worked on my race cars. I credit the 240-volt tools and my choice of 2×6 framing and fiberglass insulation for the amazingly small bump in my electric bills. I absolutely LOVED my farm, woodworking shop and the two lakes I put in using a rented bulldozer. I miss the farm but not the ex-wife.” – Gary Domke
“I purchased a 220-volt heater from a shop that went out of business and hung it in a corner from the ceiling. It’s out of the way and it keeps my entire shop toasty, even in the cold Maryland winters.” – Doc Templeton
“Last year, I had a wall-mounted heat pump installed in my garage/shop. It has a condenser outside and remote controls, so I can keep the temp workable in 100-degree heat and 20-degree cold. Of course, one or both cars have to stay outside when I have a project in process. But they haven’t complained…just my wife, who must at times get into a hot or cold car.” – Gary Ahlstrom
“I live down south (Charleston) and my shop is easily cooled with a $140 window air conditioner. Humidity is another issue, so a small dehumidifier is a must to deter rust. Heating my shop back in Indiana where I once lived was a challenge until I installed a natural-gas forced-air furnace. Best money I spent as the temp was maintained at a warm 65 degrees. Open- or closed-fire stoves may seem like a good option, however I think it would be the last choice given the risk of unfriendly fire potential.” – Tony Glotzbach
“I use two Envi heaters. They are wall-mounted convection heaters, and they only draw about three amps max each. I live in Michigan, and it does get cold, but these work. The building is well insulated. I also have two workshop cats that live inside full time. I don’t let them out to play with the coyotes, and they stay nice and warm. I also do not have a rodent problem.” – Chuck Keef
“I have a 24′ x 30′ shop with an electric Modine-style heater in one corner of the shop. The heater, when running, takes a ton of time to overcome the cooled cement slab and machinery. As I am fortunate to have a home automation system, I have built a heat circulator (in the opposite side of my shop) out of PVC pipe and computer muffin fans along with my home-built air filter on the ceiling. My automation maintains the temperature and, when the heater turns on, I also have the air filter and heat circulator turn on. It takes about an hour rather than several hours to bring my temperature recovery from 45 to 68 — pretty good recovery time. As well, it minimizes the runtime of the heater, so I am not using as much electricity for heating. Win/win.” – Lee Bernardo
“I was fortunate to be able to do the following when building a new 17′ x 44′ foot shop space: I started with 2×6 construction, well insulated, and I added an insulated garage door. Then I installed four 1000-watt flat panel infrared heaters, plus enough solar panels to generate more electricity than my house will consume in a year (including the electric heat). Cost per month for electric year-round is the $8 fee the utility charges to connect to their grid.” – Dan Lesan
“After fighting the elements for years, I vowed that if I ever got to build a new shop I would do it right. That chance came two years ago. I built a 26′ x 28′ shop with 12′ sidewalls. I insulated the 2×6 walls to R-19 plus and blew in 10 inches of insulation in the rocked ceiling. I spent the extra money for the best insulated garage door I could buy. Additionally, I placed two 52” ceiling fans to move the air and installed a 50,000 BTU air conditioner with heat tape for the winter. I installed two good windows and a good door with a storm door/screen. I have two overhead infrared heaters over my work area if I need them. I rarely use them. I literally can heat this shop with a candle. It remains a comfortable temperature year round, never falling below 50 degrees in winter with everything off and never over 70 without the air. I have thermostats on everything, so I can go out early when I am going to work in the shop and set the temp to my desired temp. No regrets. Do it right if you ever get the chance.” – Daniel Jerzak
“I live in the San Juaquin Valley in California, where we generally get a late-afternoon delta breeze. So I cool off my garage for the day by running my quiet, cool whole-house fan for an hour in the morning. Earlier this summer I insulated my garage ceiling with R-38 blown-in fiberglass insulation, with an 8″ batt, insulated storage area platform. I access my storage with a fire-rated ceiling pull-down metal ladder. What a difference this makes. I can keep a 20-degree lower temp than the outside. Then, before I finished insulating, I installed a hanging 30,000 BTU gas heater (see photo above) with a thermostat on the wall to help take off the cool edge in the winter. Last summer, I had an insulated garage door installed with good gasketing around the edges. So far, I am very pleased with the results.” – Dennis Hoffman
“Brand new so it’s a bit of a gamble, but when I installed a mini-split heat pump, I had them put one of the indoor units in the workshop. We’ll see how well it survives sawdust; some pre-filtering might be needed. A/C in summer, some heat in winter. I’m also progressively insulating the shop walls. It might not be cost effective if I was worrying about resale, but I view the house as something I live in rather than as an investment; if a modification makes the house better for my needs and isn’t unreasonably expensive, it’s worth considering.” – keshlam
“I have been heating my shop with a barrel wood burner for years. I started out with an Enders wood barrel burning kit probably 25 years ago. My first experience was with a 55-gallon barrel, which would last about two to three years. After several years of replacing the barrels, I got a 60-gallon that I have used for close to 10 years. A couple of years ago, I put a secondary 30-gallon barrel on top of this to allow the heat to be kept around a bit longer. I have cautiously monitored the fire to avoid any unexpected fires. I make sure the fire is on the way out before I leave the shop, which is about 100 yards from the house. My sources of fuel range from project scraps to tree branches. I store these up in clean seed corn bags. I usually add a sack of discarded junk mail for the fire starter. I have scrounged around town when my supply gets low, picking up fallen branches and then cutting them to fit in the bags. My inventory for this winter is fairly good.” – Bob Hantsbarger
“I’m in the process of adding solar to the garage and will also add more panels to the shop when it gets built next year. With over 8 kilowatts of generation, I’ll be using a ductless split system for the shop.” – J. Eric Pennestri
“I was using electric heaters for heat, which were fine. I had no A/C. This summer was brutal on Long Island, and because we couldn’t go anywhere I was spending more time in the shop. I am now in the process of installing a mini-split, which has both heat and A/C. It’s a bit expensive, but I’ll never have to worry about being comfortable in my shop again.” – Al Micucci
“I finally broke down and had one of those mini-splits put in. Best investment ever! I had tried fans in the summer, infrared heaters in the winter. The working conditions still kept me out. I am so glad I now have both heat and air. I only turn it on when I am in my workshop. A bonus: it actually takes care of the entire garage! My workshop is one bay in a three-car garage.” – Katherine
“My shop is a two-car garage. My strategy each year for the changing weather is three-fold. First, I take my two box fans out of my shop and put them in the shed. Second, I take my space heater from the shed and put it in my shop. Third, I change my apparel to the winter line. Sorry I don’t have a long, drawn-out technical lineup of steps taken. In all fairness to the subject, your winters are not like my winters. I live in Dallas. If it gets very far below 40 degrees, I build a fire in the fireplace, lock the shop up and look at things tomorrow when the temperature will be in the mid 60s. Living in Dallas is hard work, but somebody’s got to do it.” – Bill Self
“I use propane to heat my shop for the winter. It works fine and I am quite happy with it. One word of caution when using a heater in your shop: control the dust! The heater has electronic ignition, and I had to replace it because dust got on it and it burned up. This heater did not have any air filtration on it, so I cut up some furnace filters and duct-taped them over the vents. So far, so good! And then there’s the mice…oh, the mice. Yep, mice got into it and chewed up the wiring. It’s the only downside of living in the woods!” – Larry Williams
“I live in Saskatchewan, Canada, where the winter temperatures vary between -20 to 40 degrees centigrade. I heat my shop with a wood pellet stove. The stove keeps the shop temperature between 60 and 70 degrees. The cost per day is approximately $7 Canadian.” – Robert Barbour
“Here in northern New England, heating is a real challenge, and my shop (garage) being shared with our cars makes this doubly tough. My solution is plywood-covered and fully insulated walls (R-15) and R-30 in the ceiling with double-weather-stripped insulated garage doors. Heat is provided by a 25,000 BTU electric heater, as natural gas is unavailable here and propane is too much money when the cost of the tank is factored in. The heater is ceiling-mounted to be out of the way, pointed down at my work area, and it’s supplemented by two ceiling-mounted box fans to help circulate the warm air. Dust control is a must to keep the heater and fan motors clean, and it is provided by shop-built filter units using box fans and furnace filters. Hopefully this year I’ll add a repurposed boxed furnace blower and motor. And since everything is buttoned up and there’s only one window, a dozen overhead LED fixtures light it all up. In January and February it takes about an hour to get the shop temperature up to 60 degrees to allow me to work in a sweatshirt and jeans. Wet floors are handled with a squeegee and a powdered floor dry product commonly used in horse stalls. With this setup, not even a New Hampshire winter can keep me from making sawdust whenever I get the chance.” – Curtis Douglas
“Heat and air are pet issues with me. I live in southwest Oklahoma, and I know about both. I have, what I believe, is a dream workshop. It’s a four-car garage that has never seen a car. It’s attached to the house, so when I’m working, there is little temperature differential through the one door to the utility room. I cannot work with sweat dripping from my eyebrows and nose. Nor can I work when I’m cold or wearing three layers of clothing. First, my workshop is used daily. It saves my sanity and that of my wife. It’s my world; her world is the house. Secondly, it is essential for maintenance of 15 acres, a large house and 10 grandkids. I recognized years ago that our climate required heat and air to survive. Life here is miserable without it. I have a propane heater hanging from the ceiling and totally out of the way. I attached a thermostat, and the shop is as comfortable as the house. A large window A/C keeps temperatures cool in our very hot summers. The walls and ceiling are insulated to the max. Once I made my mind up to stand the cost of purchase and the cost of operation, I became very happy with the results. I use the workshop every day, now, and I look forward to it. If you can afford a workshop, you can afford to make it comfortable enough to use it.” – Don Wooley
“I go with the flow. You can’t change Mother Nature, and I love woodworking, so I just put up with it. I have a small heater in my shop to just take the chill off. I use fans in the summertime.” – Robert Ahlgrim
“To heat my 32′ x 26′ shop, I purchased a used heater sourced on the local Craigslist. Not having natural gas to the shop, I looked for an LP heater. Once the heater was sourced and installed, I contacted a local LP supplier and arranged to have two large LP tanks installed and the piping run to the heater. With the thermostat set at 40 degrees, there is no concern about items in the shop freezing. The heater can bring the temperature in the shop from 40 to 70 degrees in about 15 minutes. In the photo above, my heater can be seen in the upper left corner. It is suspended from the building trusses and exhausts through the end wall of the building.” – C. Ronald Farver
“Living here in south central Pennsylvania, we get to enjoy all four seasons at their best. Unfortunately, this also means we’re required to adopt a three-pronged approach to shop environmental control: heat, cooling and humidity control. The wood stove handles the heating quite well (and disposes of my mistakes), a mid-sized window air conditioner provides cooling sufficient for all but the hottest days and a residential dehumidifier helps when the other two units aren’t drying the air. The dehumidifier is plumbed to continuously drain outside, so there’s no emptying required. I estimate the energy usage for the electrical units is about $50 to $60 per year. The wood stove operates mostly for free (I make a LOT of mistakes). Additionally, shop design can have a big effect on shop comfort. My 600-sq.-ft. freestanding shop has R-11 insulation on the ceiling and sides. It is situated north of a stand of deciduous trees that block the summer sun and allow the winter sun to enter the mostly glass south wall. The south end of the shop also has a large roof overhang sized to block most of the summer sun and allows the winter sun to extend almost to the north wall. These south windows also provide great lighting for aging eyes.” – Gregory Harmon
“I am waiting for my 20′ x 24′ shop to get here and be assembled. It will not be insulated to start with. I am looking at several heating options, the most interesting being the ‘Rocket Stove’ with a mass big enough to hold a lot of the heat and release it slowly. Heating with wood scraps and leftovers sounds like a good idea to me. I am caretaker for 40 wooded acres in central Oklahoma, so lots of twigs and scrap from that. I am not burning next week’s project just to stay warm.” – RileyG
“My shop is a free-standing 24′ x 30′ building in northwest Georgia. While building it two years ago, I asked the advice of several HVAC contractors as to what they would recommend for heating and cooling. The choice came down to either a through-the-wall unit (I call that a ‘hotel unit’) or a mini-split. Trade off was original cost. Mini-split was a couple of hundred dollars more but should use less electricity. I went with the mini-split and am very satisfied. Comfort is great summer and winter for me and the shop cat. Our electrical rates are reasonable, as the power is generated by TVA.” – Jay Simmons
“I wrestled with the problems associated with heating and cooling my 16′ X 24′ workshop for years. For cooling, I relied on a window-mount air conditioner that was nominal at best for the work for which it was intended. For heating I used a kerosene heater or small electric circulating heaters. Needless to say, the kerosene heater reeked of fumes and the electric circulating heaters were expensive to operate. After research (and some snooping in neighbor’s houses) I had a wall-mounted Mitsubishi heat pump system installed. After several weeks of use, I wish I had done this years ago. It’s quiet, efficient, clean and economical to operate. The unit was relatively expensive (approximately $3,000 installed by experts), but I believe worth it in the long run. I would strongly recommend this type of system for a moderately sized workshop.” – rtd1992
“Where I live, on a tall hill at 5,200-ft. elevation in far west Texas, both heating and cooling are an issue in my lutherie shop. I had a local contractor install a Mitsubishi mini-split (updated equivalent of a heat pump) that works great for all seasons. The compressor is outside on a small concrete pedestal, and it’s the size of a medium-sized suitcase. Inside my shop is a wall-mounted blower unit a little larger than a window air conditioner, with a remote control and adjustable vanes to direct the warm or cool air where it’s needed most. The unit is operated with a remote control. It both cools and heats at high efficiency, and it can be set to dehumidify. Where I live, winter temps drop into the high teens, and summers top out at around 100. The electric bill for my 300-sq.-ft. shop is rarely over $75 a month, and $25 of that is shop equipment and lighting. Kilowatt hours here range from 10 to 14 cents, so your costs will vary depending on the cost of power. The mini-split cost about $2,500 installed. The only drawback is that it does not heat or cool the room quickly on demand. I’ve found it better to leave it on 24/7, set to minimum heating or cooling when I’m not in the shop.” – Michael Turcot
“Get a split unit air-cooling heat pump, made by Mitsubishi and others. I have had one for six years and it works great. It’s efficient and reasonable to run. Up-front costs run from $3,500 to $5,000.” – hvanbrunt
“I just moved from just outside Ft, Worth, Texas, to the north Georgia mountains near Blairsville. The shop in Texas was 12′ x 16′, and I used a window air conditioner for the summer and a Mr. Buddy two-stage heater for the winter. At my new house in Georgia, I’m fortunate to have 3/4 of my basement finished and have my shop set up there. It’s heated and air conditioned, although I haven’t had to use either so far.” – Gary Mast
“As an HVAC contractor for heating and cooling, the only safe system is a split system heat pump without back up strips — they could be a fire hazard with the sawdust. Or for heat only, look into hot water from a water heater. Look into the mini-split systems with a high (SEER) of 8 or more. Shop around; the mini-splits all work the same, just compare the SEER rating. Also, you could install a mini-split with a start-up of a standard one hour service call.” – Christensen Heating and Air Conditioning
“I’m located in Hamilton, Ohio, about 23 miles north of Cincinnati. I have dedicated two of the three bays of my detached garage to my woodworking shop, and over the last year I have divided the two-bay space and insulated it. Late last year I installed a Mr. Cool mini-split unit that enabled me to work in the shop over the summer. Last winter I didn’t have the wall up or all of the insulation installed, and it struggled to keep the shop comfortable. But with all of the work now done I’m looking forward to spending time in the shop this winter. I choose the Mr. Cool unit because it is a total DIY install, since the lines are pre-charged and I am capable of running my own electric for the disconnect box.” – Tom Atha
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